TI-2026-30463 Aliases CVE-2026-42097 GHSA-hf6p-xc3f-p4f9

Authentication Bypass in Sparx Pro Cloud Server

MEDIUM 50CWE-639Published 2026-05-19 · Updated 2026-05-19

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

Sparx Pro Cloud Server requires authentication based on requested URL. An attacker can omit the "model" query parameter and send the model name only in the binary blob in POST request allowing SQL query execution without authentication. The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version 6.1 (build 167) and below were tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00941 61st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Sparx Systems	Pro Cloud Server	up to 6.1	—	No fix listed	CNA

Pro Cloud Server VendorSparx Systems Affected up to 6.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:sparxsystems:pro_cloud_server::::::::	up to 6.1.167	Vulnerable	Sparx Systems

cpe:2.3:a:sparxsystems:pro_cloud_server:*:*:*:*:*:*:*:* Versions up to 6.1.167 Vulnerable ·Sparx Systems

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-42097
2026-10-03 Alias added: GHSA-hf6p-xc3f-p4f9

References

Exploit 1

https://sploit.tech/2026/05/19/Sparx-Enterprise-Architect-PCS.html

Advisory 2

Other 1

https://sparxsystems.com/products/procloudserver/

TI-2025-14252 Plaintext Storage of a Password in Sparx Pro Cloud Server. CVSS 4.0CRITICAL 9.3
TI-2025-14251 Sparx Pro Cloud Server reveals sensitive information to an unauthenticated user CVSS 4.0CRITICAL 9.3
TI-2026-30462 Broken Access Control in Sparx Pro Cloud Server CVSS 4.0HIGH 8.7
TI-2025-14253 Unauthenticated execution of arbitrary SQL queries in Sparx Pro Cloud Server CVSS 4.0CRITICAL 9.5
TI-2026-30465 Race Condition in Sparx Pro Cloud Server CVSS 4.0HIGH 7.7
TI-2026-30466 DoS in Sparx Pro Cloud Server CVSS 4.0HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences